1020111122122 has 16 divisors (see below), whose sum is σ = 1535759345952. Its totient is φ = 508194252720.

The previous prime is 1020111122117. The next prime is 1020111122189. The reversal of 1020111122122 is 2212211110201.

It is a junction number, because it is equal to n+sod(n) for n = 1020111122096 and 1020111122105.

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, 26404 + ... + 1428607.

It is an arithmetic number, because the mean of its divisors is an integer number (95984959122).

Almost surely, 2^{1020111122122} is an apocalyptic number.

1020111122122 is a deficient number, since it is larger than the sum of its proper divisors (515648223830).

1020111122122 is a wasteful number, since it uses less digits than its factorization.

1020111122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456293.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1020111122122 its reverse (2212211110201), we get a palindrome (3232322232323).

The spelling of 1020111122122 in words is "one trillion, twenty billion, one hundred eleven million, one hundred twenty-two thousand, one hundred twenty-two".