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122201202110020 = 22511555460009591
BaseRepresentation
bin11011110010010000101111…
…001111100010111001000100
3121000200022122212220002100021
4123302100233033202321010
5112004121030220010040
61111522242433224524
734511513464333165
oct3362205717427104
9530608585802307
10122201202110020
1135a342698a3250
12118574b3402144
1353256a7062bc7
1422267d951d76c
15e1db013ad24a
hex6f242f3e2e44

122201202110020 has 24 divisors (see below), whose sum is σ = 279951844834368. Its totient is φ = 44436800767200.

The previous prime is 122201202110017. The next prime is 122201202110027. The reversal of 122201202110020 is 20011202102221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 122201202109976 and 122201202110003.

It is not an unprimeable number, because it can be changed into a prime (122201202110027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277730004576 + ... + 277730005015.

It is an arithmetic number, because the mean of its divisors is an integer number (11664660201432).

Almost surely, 2122201202110020 is an apocalyptic number.

122201202110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122201202110020 is an abundant number, since it is smaller than the sum of its proper divisors (157750642724348).

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

122201202110020 is a wasteful number, since it uses less digits than its factorization.

122201202110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555460009611 (or 555460009609 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 122201202110020 its reverse (20011202102221), we get a palindrome (142212404212241).

The spelling of 122201202110020 in words is "one hundred twenty-two trillion, two hundred one billion, two hundred two million, one hundred ten thousand, twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 555460009591 1110920019182 2221840038364 2777300047955 5554600095910 6110060105501 11109200191820 12220120211002 24440240422004 30550300527505 61100601055010 122201202110020