1021211111122 has 16 divisors (see below), whose sum is σ = 1538609204160. Its totient is φ = 508344924592.

The previous prime is 1021211111113. The next prime is 1021211111131. The reversal of 1021211111122 is 2211111121201.

It is an interprime number because it is at equal distance from previous prime (1021211111113) and next prime (1021211111131).

It is a junction number, because it is equal to n+sod(n) for n = 1021211111096 and 1021211111105.

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, 310372 + ... + 1462447.

It is an arithmetic number, because the mean of its divisors is an integer number (96163075260).

Almost surely, 2^{1021211111122} is an apocalyptic number.

1021211111122 is a deficient number, since it is larger than the sum of its proper divisors (517398093038).

1021211111122 is a wasteful number, since it uses less digits than its factorization.

1021211111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1774097.

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

Adding to 1021211111122 its reverse (2211111121201), we get a palindrome (3232322232323).

The spelling of 1021211111122 in words is "one trillion, twenty-one billion, two hundred eleven million, one hundred eleven thousand, one hundred twenty-two".