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2021210020212 = 2231963114049059
BaseRepresentation
bin11101011010011001100…
…000010101100101110100
321011020002121020111220020
4131122121200111211310
5231103414231121322
64144310413205140
7266012316462465
oct35323140254564
97136077214806
102021210020212
1170a2103aaa09
122878831907b0
131187a38312a6
146db81752d6c
153789a0b305c
hex1d699815974

2021210020212 has 48 divisors (see below), whose sum is σ = 4972243315200. Its totient is φ = 637265270880.

The previous prime is 2021210020199. The next prime is 2021210020217. The reversal of 2021210020212 is 2120200121202.

It is a super-3 number, since 3×20212100202123 (a number of 38 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2021210020191 and 2021210020200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021210020217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6880662 + ... + 7168397.

It is an arithmetic number, because the mean of its divisors is an integer number (103588402400).

Almost surely, 22021210020212 is an apocalyptic number.

It is an amenable number.

2021210020212 is an abundant number, since it is smaller than the sum of its proper divisors (2951033294988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021210020212 is a wasteful number, since it uses less digits than its factorization.

2021210020212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14049716 (or 14049714 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2021210020212 its reverse (2120200121202), we get a palindrome (4141410141414).

The spelling of 2021210020212 in words is "two trillion, twenty-one billion, two hundred ten million, twenty thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 19 38 57 76 114 228 631 1262 1893 2524 3786 7572 11989 23978 35967 47956 71934 143868 14049059 28098118 42147177 56196236 84294354 168588708 266932121 533864242 800796363 1067728484 1601592726 3203185452 8864956229 17729912458 26594868687 35459824916 53189737374 106379474748 168434168351 336868336702 505302505053 673736673404 1010605010106 2021210020212