121122100211010 has 16 divisors (see below), whose sum is σ = 290693040506496. Its totient is φ = 32299226722928.

The previous prime is 121122100210931. The next prime is 121122100211017. The reversal of 121122100211010 is 10112001221121.

It is a happy number.

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 (121122100211017) 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, 2018701670154 + ... + 2018701670213.

It is an arithmetic number, because the mean of its divisors is an integer number (18168315031656).

Almost surely, 2^{121122100211010} is an apocalyptic number.

121122100211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121122100211010 is an abundant number, since it is smaller than the sum of its proper divisors (169570940295486).

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

121122100211010 is a wasteful number, since it uses less digits than its factorization.

121122100211010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037403340377.

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

Adding to 121122100211010 its reverse (10112001221121), we get a palindrome (131234101432131).

The spelling of 121122100211010 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred million, two hundred eleven thousand, ten".