102424220025 has 24 divisors (see below), whose sum is σ = 170634075744. Its totient is φ = 54209251200.

The previous prime is 102424220021. The next prime is 102424220039. The reversal of 102424220025 is 520022424201.

It is not a de Polignac number, because 102424220025 - 2² = 102424220021 is a prime.

It is a super-2 number, since 2×102424220025² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102424219977 and 102424220004.

It is not an unprimeable number, because it can be changed into a prime (102424220021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5202604 + ... + 5222253.

It is an arithmetic number, because the mean of its divisors is an integer number (7109753156).

Almost surely, 2^102424220025 is an apocalyptic number.

102424220025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102424220025 is a deficient number, since it is larger than the sum of its proper divisors (68209855719).

102424220025 is a wasteful number, since it uses less digits than its factorization.

102424220025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10425001 (or 10424996 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 102424220025 its reverse (520022424201), we get a palindrome (622446644226).

The spelling of 102424220025 in words is "one hundred two billion, four hundred twenty-four million, two hundred twenty thousand, twenty-five".