121221101010002 has 16 divisors (see below), whose sum is σ = 207820232503872. Its totient is φ = 51948742739760.

The previous prime is 121221101009993. The next prime is 121221101010049. The reversal of 121221101010002 is 200010101122121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262902524 + ... + 263363207.

It is an arithmetic number, because the mean of its divisors is an integer number (12988764531492).

Almost surely, 2^{121221101010002} is an apocalyptic number.

121221101010002 is a deficient number, since it is larger than the sum of its proper divisors (86599131493870).

121221101010002 is a wasteful number, since it uses less digits than its factorization.

121221101010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526282193.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121221101010002 its reverse (200010101122121), we get a palindrome (321231202132123).

The spelling of 121221101010002 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, one hundred one million, ten thousand, two".