20212222021010 has 32 divisors (see below), whose sum is σ = 38522341936512. Its totient is φ = 7609262734080.

The previous prime is 20212222021007. The next prime is 20212222021091. The reversal of 20212222021010 is 1012022221202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 20212222021010.

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, 52580405 + ... + 52963415.

It is an arithmetic number, because the mean of its divisors is an integer number (1203823185516).

Almost surely, 2^{20212222021010} is an apocalyptic number.

20212222021010 is a deficient number, since it is larger than the sum of its proper divisors (18310119915502).

20212222021010 is a wasteful number, since it uses less digits than its factorization.

20212222021010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693458.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20212222021010 its reverse (1012022221202), we get a palindrome (21224244242212).

The spelling of 20212222021010 in words is "twenty trillion, two hundred twelve billion, two hundred twenty-two million, twenty-one thousand, ten".