20201200121010 has 128 divisors (see below), whose sum is σ = 49537414425600. Its totient is φ = 5270694969600.

The previous prime is 20201200120949. The next prime is 20201200121071. The reversal of 20201200121010 is 1012100210202.

It is an interprime number because it is at equal distance from previous prime (20201200120949) and next prime (20201200121071).

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, 1437698485 + ... + 1437712535.

It is an arithmetic number, because the mean of its divisors is an integer number (387011050200).

Almost surely, 2^{20201200121010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20201200121010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24768707212800).

20201200121010 is an abundant number, since it is smaller than the sum of its proper divisors (29336214304590).

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

20201200121010 is a wasteful number, since it uses less digits than its factorization.

20201200121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17896.

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

Adding to 20201200121010 its reverse (1012100210202), we get a palindrome (21213300331212).

The spelling of 20201200121010 in words is "twenty trillion, two hundred one billion, two hundred million, one hundred twenty-one thousand, ten".