122121101210010 has 32 divisors (see below), whose sum is σ = 334960734748032. Its totient is φ = 27913394562240.

The previous prime is 122121101209969. The next prime is 122121101210011. The reversal of 122121101210010 is 10012101121221.

It is a happy number.

It is a super-2 number, since 2×122121101210010² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (122121101210011) 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, 290764526481 + ... + 290764526900.

It is an arithmetic number, because the mean of its divisors is an integer number (10467522960876).

Almost surely, 2^{122121101210010} is an apocalyptic number.

122121101210010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122121101210010 is an abundant number, since it is smaller than the sum of its proper divisors (212839633538022).

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

122121101210010 is a wasteful number, since it uses less digits than its factorization.

122121101210010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581529053398.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 122121101210010 its reverse (10012101121221), we get a palindrome (132133202331231).

The spelling of 122121101210010 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, one hundred one million, two hundred ten thousand, ten".