20020001221210 has 16 divisors (see below), whose sum is σ = 36113167093536. Its totient is φ = 7990852733968.

The previous prime is 20020001221201. The next prime is 20020001221229. The reversal of 20020001221210 is 1212210002002.

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, 2143464412 + ... + 2143473751.

It is an arithmetic number, because the mean of its divisors is an integer number (2257072943346).

Almost surely, 2^{20020001221210} is an apocalyptic number.

20020001221210 is a deficient number, since it is larger than the sum of its proper divisors (16093165872326).

20020001221210 is a wasteful number, since it uses less digits than its factorization.

20020001221210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4286938637.

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

Adding to 20020001221210 its reverse (1212210002002), we get a palindrome (21232211223212).

The spelling of 20020001221210 in words is "twenty trillion, twenty billion, one million, two hundred twenty-one thousand, two hundred ten".