1020001121202 has 128 divisors (see below), whose sum is σ = 2376833310720. Its totient is φ = 285821625600.

The previous prime is 1020001121173. The next prime is 1020001121233. The reversal of 1020001121202 is 2021211000201.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 199723533 + ... + 199728639.

It is an arithmetic number, because the mean of its divisors is an integer number (18569010240).

Almost surely, 2^{1020001121202} is an apocalyptic number.

1020001121202 is an abundant number, since it is smaller than the sum of its proper divisors (1356832189518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1020001121202 is a wasteful number, since it uses less digits than its factorization.

1020001121202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020001121202 its reverse (2021211000201), we get a palindrome (3041212121403).

The spelling of 1020001121202 in words is "one trillion, twenty billion, one million, one hundred twenty-one thousand, two hundred two".