20021111010222 has 32 divisors (see below), whose sum is σ = 48454453539072. Its totient is φ = 5383828170624.

The previous prime is 20021111010209. The next prime is 20021111010301. The reversal of 20021111010222 is 22201011112002.

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, 14020385148 + ... + 14020386575.

It is an arithmetic number, because the mean of its divisors is an integer number (1514201673096).

Almost surely, 2^{20021111010222} is an apocalyptic number.

20021111010222 is an abundant number, since it is smaller than the sum of its proper divisors (28433342528850).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20021111010222 is a wasteful number, since it uses less digits than its factorization.

20021111010222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28040771752.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20021111010222 its reverse (22201011112002), we get a palindrome (42222122122224).

The spelling of 20021111010222 in words is "twenty trillion, twenty-one billion, one hundred eleven million, ten thousand, two hundred twenty-two".