20021212020010 has 16 divisors (see below), whose sum is σ = 36188969011200. Its totient is φ = 7974976502416.

The previous prime is 20021212019987. The next prime is 20021212020037. The reversal of 20021212020010 is 1002021212002.

It is a happy 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, 4188535690 + ... + 4188540469.

It is an arithmetic number, because the mean of its divisors is an integer number (2261810563200).

Almost surely, 2^{20021212020010} is an apocalyptic number.

20021212020010 is a deficient number, since it is larger than the sum of its proper divisors (16167756991190).

20021212020010 is a wasteful number, since it uses less digits than its factorization.

20021212020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8377076405.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20021212020010 its reverse (1002021212002), we get a palindrome (21023233232012).

The spelling of 20021212020010 in words is "twenty trillion, twenty-one billion, two hundred twelve million, twenty thousand, ten".