121201100201010 has 64 divisors (see below), whose sum is σ = 304495049539584. Its totient is φ = 30837172228800.

The previous prime is 121201100200937. The next prime is 121201100201029. The reversal of 121201100201010 is 10102001102121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 917706954 + ... + 917839013.

It is an arithmetic number, because the mean of its divisors is an integer number (4757735149056).

Almost surely, 2^{121201100201010} is an apocalyptic number.

121201100201010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121201100201010 is an abundant number, since it is smaller than the sum of its proper divisors (183293949338574).

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

121201100201010 is a wasteful number, since it uses less digits than its factorization.

121201100201010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835546079.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121201100201010 its reverse (10102001102121), we get a palindrome (131303101303131).

The spelling of 121201100201010 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred million, two hundred one thousand, ten".