1010021220111 has 16 divisors (see below), whose sum is σ = 1401082707968. Its totient is φ = 646495668000.

The previous prime is 1010021220067. The next prime is 1010021220119. The reversal of 1010021220111 is 1110221200101.

It is not a de Polignac number, because 1010021220111 - 2¹⁹ = 1010020695823 is a prime.

It is a super-2 number, since 2×1010021220111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010021220119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42745840 + ... + 42769461.

It is an arithmetic number, because the mean of its divisors is an integer number (87567669248).

Almost surely, 2^{1010021220111} is an apocalyptic number.

1010021220111 is a deficient number, since it is larger than the sum of its proper divisors (391061487857).

1010021220111 is a wasteful number, since it uses less digits than its factorization.

1010021220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85515462.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1010021220111 its reverse (1110221200101), we get a palindrome (2120242420212).

The spelling of 1010021220111 in words is "one trillion, ten billion, twenty-one million, two hundred twenty thousand, one hundred eleven".