20012001011292 has 48 divisors (see below), whose sum is σ = 49544632488960. Its totient is φ = 6265167750912.

The previous prime is 20012001011291. The next prime is 20012001011333. The reversal of 20012001011292 is 29211010021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012001011291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102301078 + ... + 102496509.

It is an arithmetic number, because the mean of its divisors is an integer number (1032179843520).

Almost surely, 2^{20012001011292} is an apocalyptic number.

It is an amenable number.

20012001011292 is an abundant number, since it is smaller than the sum of its proper divisors (29532631477668).

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

20012001011292 is a wasteful number, since it uses less digits than its factorization.

20012001011292 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204798090 (or 204798088 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 20012001011292 its reverse (29211010021002), we get a palindrome (49223011032294).

The spelling of 20012001011292 in words is "twenty trillion, twelve billion, one million, eleven thousand, two hundred ninety-two".