1021112211011 has 32 divisors (see below), whose sum is σ = 1078659084288. Its totient is φ = 965392888320.

The previous prime is 1021112210983. The next prime is 1021112211029. The reversal of 1021112211011 is 1101122111201.

It is a cyclic number.

It is not a de Polignac number, because 1021112211011 - 2¹⁰ = 1021112209987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021112811011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150981716 + ... + 150988478.

It is an arithmetic number, because the mean of its divisors is an integer number (33708096384).

Almost surely, 2^{1021112211011} is an apocalyptic number.

1021112211011 is a deficient number, since it is larger than the sum of its proper divisors (57546873277).

1021112211011 is a wasteful number, since it uses less digits than its factorization.

1021112211011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7491.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1021112211011 its reverse (1101122111201), we get a palindrome (2122234322212).

The spelling of 1021112211011 in words is "one trillion, twenty-one billion, one hundred twelve million, two hundred eleven thousand, eleven".