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1020010201212 = 223379672375719
BaseRepresentation
bin11101101011111010101…
…10001000000001111100
310121111211021010222011110
432311331112020001330
5113202440102414322
62100330342322020
7133456542441042
oct16657526100174
93544737128143
101020010201212
11363647192272
12145827429310
1375256b057a2
1437523c26392
151b7ed349c0c
hexed7d58807c

1020010201212 has 48 divisors (see below), whose sum is σ = 2446877565440. Its totient is φ = 330471876672.

The previous prime is 1020010201201. The next prime is 1020010201219. The reversal of 1020010201212 is 2121020100201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020010201219) 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, 758512 + ... + 1617207.

Almost surely, 21020010201212 is an apocalyptic number.

1020010201212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020010201212 is an abundant number, since it is smaller than the sum of its proper divisors (1426867364228).

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

1020010201212 is a wasteful number, since it uses less digits than its factorization.

1020010201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2376730 (or 2376728 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020010201212 its reverse (2121020100201), we get a palindrome (3141030301413).

The spelling of 1020010201212 in words is "one trillion, twenty billion, ten million, two hundred one thousand, two hundred twelve".

Divisors: 1 2 3 4 6 12 37 74 111 148 222 444 967 1934 2901 3868 5802 11604 35779 71558 107337 143116 214674 429348 2375719 4751438 7127157 9502876 14254314 28508628 87901603 175803206 263704809 351606412 527409618 1054819236 2297320273 4594640546 6891960819 9189281092 13783921638 27567843276 85000850101 170001700202 255002550303 340003400404 510005100606 1020010201212