1020012211211 has 12 divisors (see below), whose sum is σ = 1187179100640. Its totient is φ = 873828814320.

The previous prime is 1020012211193. The next prime is 1020012211249. The reversal of 1020012211211 is 1121122100201.

It is not a de Polignac number, because 1020012211211 - 2³⁸ = 745134304267 is a prime.

It is a super-2 number, since 2×1020012211211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020012211261) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5471276 + ... + 5654633.

It is an arithmetic number, because the mean of its divisors is an integer number (98931591720).

Almost surely, 2^{1020012211211} is an apocalyptic number.

1020012211211 is a deficient number, since it is larger than the sum of its proper divisors (167166889429).

1020012211211 is a wasteful number, since it uses less digits than its factorization.

1020012211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11127794 (or 11127787 counting only the distinct ones).

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

Adding to 1020012211211 its reverse (1121122100201), we get a palindrome (2141134311412).

The spelling of 1020012211211 in words is "one trillion, twenty billion, twelve million, two hundred eleven thousand, two hundred eleven".