20010012011010 has 96 divisors (see below), whose sum is σ = 59548547710080. Its totient is φ = 4566776546304.

The previous prime is 20010012010987. The next prime is 20010012011023. The reversal of 20010012011010 is 1011021001002.

It is a happy number.

It is a super-2 number, since 2×20010012011010² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20010012010983 and 20010012011001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23683407 + ... + 24513746.

It is an arithmetic number, because the mean of its divisors is an integer number (620297371980).

Almost surely, 2^{20010012011010} is an apocalyptic number.

20010012011010 is an abundant number, since it is smaller than the sum of its proper divisors (39538535699070).

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

20010012011010 is a wasteful number, since it uses less digits than its factorization.

20010012011010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48197832 (or 48197829 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20010012011010 its reverse (1011021001002), we get a palindrome (21021033012012).

The spelling of 20010012011010 in words is "twenty trillion, ten billion, twelve million, eleven thousand, ten".