1020200121202 has 64 divisors (see below), whose sum is σ = 1600983014400. Its totient is φ = 487170573120.

The previous prime is 1020200121197. The next prime is 1020200121251. The reversal of 1020200121202 is 2021210020201.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1150168803 + ... + 1150169689.

It is an arithmetic number, because the mean of its divisors is an integer number (25015359600).

Almost surely, 2^{1020200121202} is an apocalyptic number.

1020200121202 is a deficient number, since it is larger than the sum of its proper divisors (580782893198).

1020200121202 is a wasteful number, since it uses less digits than its factorization.

1020200121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951.

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

Adding to 1020200121202 its reverse (2021210020201), we get a palindrome (3041410141403).

The spelling of 1020200121202 in words is "one trillion, twenty billion, two hundred million, one hundred twenty-one thousand, two hundred two".