21011011210022 has 32 divisors (see below), whose sum is σ = 33330145814784. Its totient is φ = 9919685692800.

The previous prime is 21011011209967. The next prime is 21011011210051. The reversal of 21011011210022 is 22001211011012.

It is a junction number, because it is equal to n+sod(n) for n = 21011011209979 and 21011011210006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17068493 + ... + 18258024.

It is an arithmetic number, because the mean of its divisors is an integer number (1041567056712).

Almost surely, 2^{21011011210022} is an apocalyptic number.

21011011210022 is a deficient number, since it is larger than the sum of its proper divisors (12319134604762).

21011011210022 is a wasteful number, since it uses less digits than its factorization.

21011011210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35326784.

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

Adding to 21011011210022 its reverse (22001211011012), we get a palindrome (43012222221034).

The spelling of 21011011210022 in words is "twenty-one trillion, eleven billion, eleven million, two hundred ten thousand, twenty-two".