25022021012 has 24 divisors (see below), whose sum is σ = 44634240000. Its totient is φ = 12269587616.

The previous prime is 25022020973. The next prime is 25022021021. The reversal of 25022021012 is 21012022052.

It is a super-2 number, since 2×25022021012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483989 + ... + 533187.

It is an arithmetic number, because the mean of its divisors is an integer number (1859760000).

Almost surely, 2^25022021012 is an apocalyptic number.

It is an amenable number.

25022021012 is a deficient number, since it is larger than the sum of its proper divisors (19612218988).

25022021012 is a wasteful number, since it uses less digits than its factorization.

25022021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51655 (or 51653 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 25022021012 its reverse (21012022052), we get a palindrome (46034043064).

The spelling of 25022021012 in words is "twenty-five billion, twenty-two million, twenty-one thousand, twelve".