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1202122211020 = 22560106110551
BaseRepresentation
bin10001011111100100000…
…100010011111011001100
311020220212222000121012121
4101133210010103323030
5124143421241223040
62320125230542324
7152564465125123
oct21374404237314
94226788017177
101202122211020
114238a97156a5
12174b903679a4
138948a181483
144227c316aba
152140b18dc4a
hex117e4113ecc

1202122211020 has 12 divisors (see below), whose sum is σ = 2524456643184. Its totient is φ = 480848884400.

The previous prime is 1202122210999. The next prime is 1202122211041. The reversal of 1202122211020 is 201122212021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1202122210999) and next prime (1202122211041).

It is a super-2 number, since 2×12021222110202 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1202122210985 and 1202122211003.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30053055256 + ... + 30053055295.

It is an arithmetic number, because the mean of its divisors is an integer number (210371386932).

Almost surely, 21202122211020 is an apocalyptic number.

1202122211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1202122211020 is an abundant number, since it is smaller than the sum of its proper divisors (1322334432164).

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

1202122211020 is a wasteful number, since it uses less digits than its factorization.

1202122211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60106110560 (or 60106110558 counting only the distinct ones).

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

Adding to 1202122211020 its reverse (201122212021), we get a palindrome (1403244423041).

The spelling of 1202122211020 in words is "one trillion, two hundred two billion, one hundred twenty-two million, two hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 60106110551 120212221102 240424442204 300530552755 601061105510 1202122211020