121020012221102 has 16 divisors (see below), whose sum is σ = 183196029738480. Its totient is φ = 59954672601792.

The previous prime is 121020012221047. The next prime is 121020012221111. The reversal of 121020012221102 is 201122210020121.

It is a congruent number.

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, 84317738 + ... + 85741010.

It is an arithmetic number, because the mean of its divisors is an integer number (11449751858655).

Almost surely, 2^{121020012221102} is an apocalyptic number.

121020012221102 is a deficient number, since it is larger than the sum of its proper divisors (62176017517378).

121020012221102 is a wasteful number, since it uses less digits than its factorization.

121020012221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813427.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121020012221102 its reverse (201122210020121), we get a palindrome (322142222241223).

The spelling of 121020012221102 in words is "one hundred twenty-one trillion, twenty billion, twelve million, two hundred twenty-one thousand, one hundred two".