122100012010 has 16 divisors (see below), whose sum is σ = 221956063272. Its totient is φ = 48356440000.

The previous prime is 122100012007. The next prime is 122100012019. The reversal of 122100012010 is 10210001221.

It can be written as a sum of positive squares in 4 ways, for example, as 93950219169 + 28149792841 = 306513^2 + 167779^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (122100012019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60444541 + ... + 60446560.

Almost surely, 2^122100012010 is an apocalyptic number.

122100012010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122100012010 is a deficient number, since it is larger than the sum of its proper divisors (99856051262).

122100012010 is a wasteful number, since it uses less digits than its factorization.

122100012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120891209.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 122100012010 its reverse (10210001221), we get a palindrome (132310013231).

The spelling of 122100012010 in words is "one hundred twenty-two billion, one hundred million, twelve thousand, ten".