121231012101022 has 4 divisors (see below), whose sum is σ = 181846518151536. Its totient is φ = 60615506050510.

The previous prime is 121231012100993. The next prime is 121231012101107. The reversal of 121231012101022 is 220101210132121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30307753025254 + ... + 30307753025257.

It is an arithmetic number, because the mean of its divisors is an integer number (45461629537884).

Almost surely, 2^{121231012101022} is an apocalyptic number.

121231012101022 is a deficient number, since it is larger than the sum of its proper divisors (60615506050514).

121231012101022 is an equidigital number, since it uses as much as digits as its factorization.

121231012101022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60615506050513.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121231012101022 its reverse (220101210132121), we get a palindrome (341332222233143).

The spelling of 121231012101022 in words is "one hundred twenty-one trillion, two hundred thirty-one billion, twelve million, one hundred one thousand, twenty-two".