1212021210022 has 16 divisors (see below), whose sum is σ = 2078453371680. Its totient is φ = 519261979968.

The previous prime is 1212021209989. The next prime is 1212021210031. The reversal of 1212021210022 is 2200121202121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212021209978 and 1212021210005.

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, 14597247 + ... + 14680042.

It is an arithmetic number, because the mean of its divisors is an integer number (129903335730).

Almost surely, 2^{1212021210022} is an apocalyptic number.

1212021210022 is a deficient number, since it is larger than the sum of its proper divisors (866432161658).

1212021210022 is a wasteful number, since it uses less digits than its factorization.

1212021210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29280255.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212021210022 its reverse (2200121202121), we get a palindrome (3412142412143).

The spelling of 1212021210022 in words is "one trillion, two hundred twelve billion, twenty-one million, two hundred ten thousand, twenty-two".