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22010021010020 = 2257879139675219
BaseRepresentation
bin1010000000100100110110…
…11110111101101001100100
32212221010201012121102002002
411000102123132331221210
510341103010334310040
6114451133012104432
74431112560505421
oct500223336755144
985833635542062
1022010021010020
117016441072a8a
122575833605118
13c386c79b0624
1456140d97cd48
152827e79c1a15
hex14049b7bda64

22010021010020 has 24 divisors (see below), whose sum is σ = 46226910811200. Its totient is φ = 8802890939232.

The previous prime is 22010021010017. The next prime is 22010021010049. The reversal of 22010021010020 is 2001012001022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22010021009983 and 22010021010010.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69680030 + ... + 69995189.

It is an arithmetic number, because the mean of its divisors is an integer number (1926121283800).

Almost surely, 222010021010020 is an apocalyptic number.

22010021010020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22010021010020 is an abundant number, since it is smaller than the sum of its proper divisors (24216889801180).

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

22010021010020 is a wasteful number, since it uses less digits than its factorization.

22010021010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139683107 (or 139683105 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22010021010020 its reverse (2001012001022), we get a palindrome (24011033011042).

The spelling of 22010021010020 in words is "twenty-two trillion, ten billion, twenty-one million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 7879 15758 31516 39395 78790 157580 139675219 279350438 558700876 698376095 1396752190 2793504380 1100501050501 2201002101002 4402004202004 5502505252505 11005010505010 22010021010020