221212020122002 has 96 divisors (see below), whose sum is σ = 439853148564480. Its totient is φ = 82472461908480.

The previous prime is 221212020121931. The next prime is 221212020122033. The reversal of 221212020122002 is 200221020212122.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19300023 + ... + 28546714.

It is an arithmetic number, because the mean of its divisors is an integer number (4581803630880).

Almost surely, 2^{221212020122002} is an apocalyptic number.

221212020122002 is a deficient number, since it is larger than the sum of its proper divisors (218641128442478).

221212020122002 is a wasteful number, since it uses less digits than its factorization.

221212020122002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47846976 (or 47846969 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 221212020122002 its reverse (200221020212122), we get a palindrome (421433040334124).

The spelling of 221212020122002 in words is "two hundred twenty-one trillion, two hundred twelve billion, twenty million, one hundred twenty-two thousand, two".