10101012121220 has 24 divisors (see below), whose sum is σ = 21215508292608. Its totient is φ = 4039760498400.

The previous prime is 10101012121159. The next prime is 10101012121231. The reversal of 10101012121220 is 2212121010101.

10101012121220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 10101012121195 and 10101012121204.

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, 40143326 + ... + 40394165.

It is an arithmetic number, because the mean of its divisors is an integer number (883979512192).

Almost surely, 2^{10101012121220} is an apocalyptic number.

10101012121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10101012121220 is an abundant number, since it is smaller than the sum of its proper divisors (11114496171388).

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

10101012121220 is a wasteful number, since it uses less digits than its factorization.

10101012121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80543771 (or 80543769 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10101012121220 its reverse (2212121010101), we get a palindrome (12313133131321).

The spelling of 10101012121220 in words is "ten trillion, one hundred one billion, twelve million, one hundred twenty-one thousand, two hundred twenty".