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102022212020 = 22523945914649
BaseRepresentation
bin101111100000011111…
…1110110100110110100
3100202100002210100122012
41133000333312212310
53132420141241040
6114511322023352
710241130331241
oct1370077664664
9322302710565
10102022212020
113a2a3973a03
1217933047b58
13980b762cc1
144d1b85c5c8
1529c1a38865
hex17c0ff69b4

102022212020 has 48 divisors (see below), whose sum is σ = 215236224000. Its totient is φ = 40620545280.

The previous prime is 102022211987. The next prime is 102022212031. The reversal of 102022212020 is 20212220201.

It is a junction number, because it is equal to n+sod(n) for n = 102022211986 and 102022212004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21942656 + ... + 21947304.

It is an arithmetic number, because the mean of its divisors is an integer number (4484088000).

Almost surely, 2102022212020 is an apocalyptic number.

102022212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102022212020 is an abundant number, since it is smaller than the sum of its proper divisors (113214011980).

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

102022212020 is a wasteful number, since it uses less digits than its factorization.

102022212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9488 (or 9486 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 102022212020 its reverse (20212220201), we get a palindrome (122234432221).

It can be divided in two parts, 10202 and 2212020, that added together give a palindrome (2222222).

The spelling of 102022212020 in words is "one hundred two billion, twenty-two million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 239 478 956 1195 2390 4591 4649 4780 9182 9298 18364 18596 22955 23245 45910 46490 91820 92980 1097249 1111111 2194498 2222222 4388996 4444444 5486245 5555555 10972490 11111110 21343559 21944980 22222220 42687118 85374236 106717795 213435590 426871180 5101110601 10202221202 20404442404 25505553005 51011106010 102022212020