20010102121120 has 24 divisors (see below), whose sum is σ = 47273866261524. Its totient is φ = 8004040848384.

The previous prime is 20010102121109. The next prime is 20010102121123. The reversal of 20010102121120 is 2112120101002.

It can be written as a sum of positive squares in 2 ways, for example, as 19592698260496 + 417403860624 = 4426364^2 + 646068^2 .

It is a super-2 number, since 2×20010102121120² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20010102121120.

It is not an unprimeable number, because it can be changed into a prime (20010102121123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62531568969 + ... + 62531569288.

Almost surely, 2^{20010102121120} is an apocalyptic number.

20010102121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20010102121120 is an abundant number, since it is smaller than the sum of its proper divisors (27263764140404).

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

20010102121120 is a wasteful number, since it uses less digits than its factorization.

20010102121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125063138272 (or 125063138264 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20010102121120 its reverse (2112120101002), we get a palindrome (22122222222122).

The spelling of 20010102121120 in words is "twenty trillion, ten billion, one hundred two million, one hundred twenty-one thousand, one hundred twenty".