21061011011062 has 16 divisors (see below), whose sum is σ = 34850702595600. Its totient is φ = 9465622925440.

The previous prime is 21061011011017. The next prime is 21061011011099. The reversal of 21061011011062 is 26011011016012.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

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, 5378192887 + ... + 5378196802.

It is an arithmetic number, because the mean of its divisors is an integer number (2178168912225).

Almost surely, 2^{21061011011062} is an apocalyptic number.

21061011011062 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21061011011062 is a deficient number, since it is larger than the sum of its proper divisors (13789691584538).

21061011011062 is a wasteful number, since it uses less digits than its factorization.

21061011011062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10756389791.

The product of its (nonzero) digits is 144, while the sum is 22.

Multiplying 21061011011062 by its sum of digits (22), we get a palindrome (463342242243364).

Adding to 21061011011062 its reverse (26011011016012), we get a palindrome (47072022027074).

The spelling of 21061011011062 in words is "twenty-one trillion, sixty-one billion, eleven million, eleven thousand, sixty-two".