121211220201002 has 4 divisors (see below), whose sum is σ = 181816830301506. Its totient is φ = 60605610100500.

The previous prime is 121211220200957. The next prime is 121211220201011. The reversal of 121211220201002 is 200102022112121.

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

It can be written as a sum of positive squares in only one way, i.e., 106187851953001 + 15023368248001 = 10304749^2 + 3875999^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30302805050249 + ... + 30302805050252.

Almost surely, 2^{121211220201002} is an apocalyptic number.

121211220201002 is a deficient number, since it is larger than the sum of its proper divisors (60605610100504).

121211220201002 is an equidigital number, since it uses as much as digits as its factorization.

121211220201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60605610100503.

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

Adding to 121211220201002 its reverse (200102022112121), we get a palindrome (321313242313123).

The spelling of 121211220201002 in words is "one hundred twenty-one trillion, two hundred eleven billion, two hundred twenty million, two hundred one thousand, two".